V7-1B17D8

Snap Action, Limit Switches: V7-1B17D8 Application Field and Working Principle

When it comes to switches, which are widely used in both industrial and residential applications, the type that is often forgotten is the Snap Action, Limit Switch. Snap action switches are designed to break, open, or close a circuit when a specific pressure, angle, or force is applied. Generally, these switches are quite reliable and operate without problems.

The V7-1B17D8 is a double-pole, double-throw (DPDT) Snap Action, Limit Switch, which is commonly used in industrial, machine, and control applications. This particular switch is a high-performance design, integrating contactless technology with a simplified wiring diagram, a low profile, reliability, and tight tolerance contact side-actuation adjustment.

Application Field

The V7-1B17D8 is designed to be highly accurate and versatile, making it suitable for a broad range of applications. It can be used in industrial machines to limit, provide on/off switching, or provide position feedback and identification of a lever arm in motion. It can be used in automated systems to link switch positions with process setpoints and control outputs. It can also be used in safety systems to activate or deactivate circuits or shutdown entire systems in hazardous situations. Moreover, these switches can be used as proximity sensors that detect the presence of an object and send an approved signal to a PLC to start or stop the automation process.

Working Principle

The V7-1B17D8 employs the principle of either a rotating ball switch or hallmark switch to create its switching action. When pressure, angle, or force is applied to the switch, a mechanism is triggered which will cause a metal rod or plunger to move thereby making or breaking a contact. The metal rod or plunger is housed in a sealed chamber and is resistant to dust, water, and other environmental contaminants.

When a metal rod or plunger is triggered, it makes contact with electrical contacts connected to the switch. The contacts on the switch may be connected to one of two contacts. Once the metal rod or plunger moves, it will complete a circuit and the contacts will then be connected to the opposite switch contact. This will then cause the circuit to open or close.

Snap action switches are known for their high reliability. They are resistant to shock and vibration, which is important in many applications. They also have high repeatability, which means that the switch will repeat the same action each time it is activated. This is a key feature for applications such as medical equipment, test and measurement systems, and security systems.

Conclusion

The V7-1B17D8 is a high-performance limiter switch that can be used in a variety of applications. Its reliable operation, tight tolerance contact side-action adjustment, and its small size make it an ideal solution for many industrial, machine, and control applications.